Transport for London, England

TfL API

Transport for London, England publishes 15 API contracts indexed on the APIs.io network, including Accident Stats API, Air Quality API, Bike Point API, and 12 more. Tagged areas include Transportation and Public APIs.

Transport for London, England’s developer surface includes API reference and 5 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

20.2/100 emerging ▲ 15.0 Agent 16/100 agent aware Front door AI 1/6 silent Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract

Transportation Public APIs

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 20.2/100 · emerging

Contract Quality 8.6 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 3.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 3.9 / 9

Regulatory Posture 0.6 / 15

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 16.7 — up to +16.7 composite points Ask about this →
Access Clarity scores 19.1 — up to +16.2 composite points Ask about this →
Contract Quality scores 40.3 — up to +14.9 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/transport-for-london-england/apis.yml: open an issue on github.com/api-evangelist/transport-for-london-england to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Government and Open Data	standard	17.2 (thin)	-	-
UK G-Cloud Suppliers (UK public-sector cloud procurement)	standard	17.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 15

Individual APIs this provider publishes, each with its own machine-readable definition.

Transport for London, England

TfL API

Transport for London, England Accident Stats API

The AccidentStats API from Transport for London, England — 1 operation(s) for accidentstats.

Transport for London, England Air Quality API

The AirQuality API from Transport for London, England — 1 operation(s) for airquality.

Transport for London, England Bike Point API

The BikePoint API from Transport for London, England — 3 operation(s) for bikepoint.

Transport for London, England Cabwise API

The Cabwise API from Transport for London, England — 1 operation(s) for cabwise.

Transport for London, England Journey API

The Journey API from Transport for London, England — 2 operation(s) for journey.

Transport for London, England Line API

The Line API from Transport for London, England — 21 operation(s) for line.

Transport for London, England Mode API

The Mode API from Transport for London, England — 2 operation(s) for mode.

Transport for London, England Occupancy API

The Occupancy API from Transport for London, England — 5 operation(s) for occupancy.

Transport for London, England Place API

The Place API from Transport for London, England — 9 operation(s) for place.

Transport for London, England Road API

The Road API from Transport for London, England — 8 operation(s) for road.

Transport for London, England Search API

The Search API from Transport for London, England — 5 operation(s) for search.

Transport for London, England Stop Point API

The StopPoint API from Transport for London, England — 23 operation(s) for stoppoint.

Transport for London, England Travel Time API

The TravelTime API from Transport for London, England — 2 operation(s) for traveltime.

Transport for London, England Vehicle API

The Vehicle API from Transport for London, England — 1 operation(s) for vehicle.

Scroll for all 15

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Transport for London, England Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

PublicAPIsListing

PublicAPIsListing

Source (apis.yml)

aid: transport-for-london-england
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/transport-for-london-england.png
name: Transport for London, England
description: TfL API
url: https://api.tfl.gov.uk
specificationVersion: '0.23'
created: '2026-05-28'
modified: '2026-05-28'
x-source: public-apis/public-apis
x-category: Transportation
x-tier: 3
x-tier-reason: bulk-registered-from-public-apis
tags:
- Transportation
- Public APIs
apis:
- name: Transport for London, England
  description: TfL API
  humanURL: https://api.tfl.gov.uk
  tags:
  - Transportation
  properties:
  - type: Documentation
    url: https://api.tfl.gov.uk
- aid: transport-for-london-england:transport-for-london-england-accidentstats-api
  name: Transport for London, England Accident Stats API
  description: The AccidentStats API from Transport for London, England — 1 operation(s) for accidentstats.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - AccidentStats
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-accidentstats-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-airquality-api
  name: Transport for London, England Air Quality API
  description: The AirQuality API from Transport for London, England — 1 operation(s) for airquality.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Air Quality
  tags_raw:
  - AirQuality
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-airquality-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-bikepoint-api
  name: Transport for London, England Bike Point API
  description: The BikePoint API from Transport for London, England — 3 operation(s) for bikepoint.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - BikePoint
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-bikepoint-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-cabwise-api
  name: Transport for London, England Cabwise API
  description: The Cabwise API from Transport for London, England — 1 operation(s) for cabwise.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Cabwise
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-cabwise-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-journey-api
  name: Transport for London, England Journey API
  description: The Journey API from Transport for London, England — 2 operation(s) for journey.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Journey
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-journey-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-line-api
  name: Transport for London, England Line API
  description: The Line API from Transport for London, England — 21 operation(s) for line.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Line
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-line-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-mode-api
  name: Transport for London, England Mode API
  description: The Mode API from Transport for London, England — 2 operation(s) for mode.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Mode
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-mode-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-occupancy-api
  name: Transport for London, England Occupancy API
  description: The Occupancy API from Transport for London, England — 5 operation(s) for occupancy.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Occupancy
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-occupancy-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-place-api
  name: Transport for London, England Place API
  description: The Place API from Transport for London, England — 9 operation(s) for place.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Place
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-place-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-road-api
  name: Transport for London, England Road API
  description: The Road API from Transport for London, England — 8 operation(s) for road.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Road
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-road-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-search-api
  name: Transport for London, England Search API
  description: The Search API from Transport for London, England — 5 operation(s) for search.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-search-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-stoppoint-api
  name: Transport for London, England Stop Point API
  description: The StopPoint API from Transport for London, England — 23 operation(s) for stoppoint.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - StopPoint
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-stoppoint-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-traveltime-api
  name: Transport for London, England Travel Time API
  description: The TravelTime API from Transport for London, England — 2 operation(s) for traveltime.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Travel Time
  tags_raw:
  - TravelTime
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-traveltime-api-openapi.yml
- aid: transport-for-london-england:transport-for-london-england-vehicle-api
  name: Transport for London, England Vehicle API
  description: The Vehicle API from Transport for London, England — 1 operation(s) for vehicle.
  humanURL: https://api.tfl.gov.uk
  baseURL: https://api.tfl.gov.uk
  tags:
  - Vehicles
  tags_raw:
  - Vehicle
  properties:
  - type: OpenAPI
    url: openapi/transport-for-london-england-vehicle-api-openapi.yml
common:
- type: PrivacyPolicy
  url: https://tfl.gov.uk/corporate/privacy-and-cookies/
- type: Login
  url: https://api-portal.tfl.gov.uk/signin
- type: APIReference
  url: https://api.tfl.gov.uk/swagger/docs/v1
- type: DomainSecurity
  url: security/transport-for-london-england-domain-security.yml
- type: Website
  url: https://api.tfl.gov.uk
- type: PublicAPIsListing
  url: https://github.com/public-apis/public-apis
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Transport for London, England API — frequently asked questions

Does Transport for London, England have an API?

Yes. APIs.io lists 15 APIs from Transport for London, England, including Transport for London, England, Transport for London, England Accident Stats API and Transport for London, England Air Quality API, and 12 more.

Is there an OpenAPI specification for the Transport for London, England API?

Yes. APIs.io indexes 14 OpenAPI specifications for Transport for London, England, each linked for download from this page.

How do I authenticate with the Transport for London, England API?

Transport for London, England uses bearer-token authentication.

Is the Transport for London, England API ready for AI agents?

Transport for London, England has a Kin Score of 20.2 out of 100 (emerging) and an Agent Readiness score of 15.6 (agent-aware), scored by API Evangelist on 2026-11-13.

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